Home / 141,445.64-195,196.38-77,783.88

Finding the Fourth Proportional to 141,445.64, 195,196.38 and 77,783.88

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Solution

The fourth proportional to 141,445.64, 195,196.38 and 77,783.88 is: 107,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,445.64 : 195,196.38 = 77,783.88 : x
  2. Step 2: Convert to fraction form
    141,445.64/195,196.38 = 77,783.88/x
  3. Step 3: Cross multiply
    141,445.64x = 195,196.38 × 77,783.88
  4. Step 4: Simplify right side
    141,445.64x = 15,183,131,798.35
  5. Step 5: Solve for x
    x = 15,183,131,798.35/141,445.64
  6. Step 6: Final answer
    x = 107,342.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.